Patent
US 9,093,365AlN or AlGaN nucleation layer
substrate
Optical image comparing GaN growth structure with diffusion blocking layer and strain relief layer (smooth surface) versus GaN growth structure with single AlN buffer layer (rough surface).
| — |
Temperature | 450–600 °C | — |
Thickness | 30–100 nm | — |
Thickness | 1–5 um | — |
AlN or AlGaN nucleation layer
substrate
Optical image comparing GaN growth structure with diffusion blocking layer and strain relief layer (smooth surface) versus GaN growth structure with single AlN buffer layer (rough surface).
| — |
Temperature | 450–600 °C | — |
Thickness | 30–100 nm | — |
Thickness | 1–5 um | — |
AlN or AlGaN nucleation layer
substrate
Optical image comparing GaN growth structure with diffusion blocking layer and strain relief layer (smooth surface) versus GaN growth structure with single AlN buffer layer (rough surface).
| — |
Temperature | 450–600 °C | — |
Thickness | 30–100 nm | — |
Thickness | 1–5 um | — |
AlN or AlGaN nucleation layer
substrate
Optical image comparing GaN growth structure with diffusion blocking layer and strain relief layer (smooth surface) versus GaN growth structure with single AlN buffer layer (rough surface).
| — |
Temperature | 450–600 °C | — |
Thickness | 30–100 nm | — |
Thickness | 1–5 um | — |